Dogs noses are so soft and cute and wonderful in every way!
No, not all dogs have black noses. Some dogs have pink noses, or even white. Some dog's noses are black to keep their nose from getting a sunburn.
Dogs noses can discolour as the get older., Border collies noses sometimes change from black to a pale pink or brown, Whereas Golden retrivers noses can get darker as they age - but some dogs obliviously don't change colour ;)
the way we smell through our noses
No, this is an old wives' tale. Some dogs naturally have dry noses, while others naturally have wet noses.
to clean it
no
Dogs have cold noses because when they breathe they exhale water vapor through their noses. The vapor condenses on their noses and cools them down, similar how sweat cools down a human's body.
Dogs' noses secrete a small amount of mucus which serves two purposes: to help their sense of smell, and to keep themselves cool.
Punishment. Mother dogs will bite their puppies noses when they do something they should not, as nipping to hard when playing with his/her mother, etc.
Dogs' noses twitch to gather more information about their surroundings through scent receptors, helping them to detect and identify different smells.
no they can nott.
they want to be stroked (fussed)